Hitachi Hydraulic Excavator ZX 350LC-7 350LCN-7 Troubleshooting Technical Manual TTDD750-EN-00 PDF

Description

 Hitachi Hydraulic Excavator ZX 350LC-7 350LCN-7 Troubleshooting Technical Manual TTDD750-EN-00  – PDF DOWNLOAD

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Hitachi Hydraulic Excavator ZX 350LC-7 350LCN-7 Troubleshooting Technical Manual TTDD750-EN-00  – PDF DOWNLOAD

Language :English
Pages :188
Downloadable : Yes
File Type : PDF

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DESCRIPRION:

Hitachi Hydraulic Excavator ZX 350LC-7 350LCN-7 Troubleshooting Technical Manual TTDD750-EN-00  – PDF DOWNLOAD

To The Reader
This manual is written for an experienced technician to provide technical information needed to maintain and repair this machine.
The machine specification and description according to destination may be explained on this manual.
Be sure to thoroughly read this manual for correct product information and service procedures.
If you have any questions or comments, at if you found any errors regarding the contents of this manual, please contact using “Service Manual Revision Request Form” at the end of this manual. (Note: Do not tear off the form. Copy this form for usage.)

TABLE OF CONTENTS:

Hitachi Hydraulic Excavator ZX 350LC-7 350LCN-7 Troubleshooting Technical Manual TTDD750-EN-00  – PDF DOWNLOAD

TTDD750-EN-00 1
INTRODUCTION 3
To The Reader 3
Additional References 3
Manual Composition 3
Page Number 3
Trademark 4
Safety Alert Symbol and Headline Notations 4
Units Used 4
SYMBOL AND ABBREVIATION 7
Symbol and Abbreviation 7
CONTRASTING LIST OF PART NAME 9
Contrasting List of Part Name between Technical Manual and Parts Catalog 9
SAFETY 11
Recognize Safety Information 11
Understand Signal Words 11
Follow Safety Instructions 12
Prepare for Emergencies 13
Wear Protective Clothing 13
Protect Against Noise 14
Inspect Machine 14
General Precautions for the Cab 15
Use Handrail and Steps 15
Adjust the Operator’s Seat 16
Ensure Safety Before Rising from or Leaving Operator’s Seat 16
Fasten Your Seat Belt 16
Move and Operate Machine Safely 17
Start the Engine Only from Operator’s Seat 17
Jump Starting 18
Keep Riders off Machine 18
Precautions for Operations 19
Perform Job Site Risk Assessment Beforehand 20
Install OPG Guard 21
Restriction of Attachment Installation 21
Provide Signals for Jobs Involving Multiple Machines 21
Confirm Direction of Machine Travel 22
Drive Machine Safely 23
Avoid Injury from Rollaway Accidents 25
Avoid Accidents from Reversing and Swing Operation 26
Keep People Clear from Working Area 27
Never Position the Bucket Over Anyone 27
Avoid Undercutting 28
Avoid Tipping 28
Never Undercut a High Bank 29
Dig with Caution 29
Caution with an Overhead Obstacle 30
Avoid Power Lines 30
Precautions for Lightning 31
Object Handling 31
Protect Against Flying Debris and Falling Object 32
Park Machine Safely 33
Handle Fluids Safely−Avoid Fires 34
Transport Safely 35
Practice Maintenance Safely 36
Warn Others of Service Work 37
Support Machine Properly 38
Stay Clear of Moving Parts 38
Prevent Parts from Flying 39
Avoid Injury from Attachment Falling Accident 39
Prevent Burns 40
Replace Rubber Hoses Periodically 41
Avoid High-Pressure Fluids 41
Prevent Fires 42
Check for Oil Leaks: 42
Check for Short circuits: 42
Clean up Flammable Materials: 43
Check Key Switch: 43
Check Heat Shields: 43
Evacuating in Case of Fire 44
Beware of Exhaust Fumes 44
Precautions for Welding and Grinding 45
Avoid Heating Near Pressurized Fluid Lines 45
Avoid Applying Heat to Lines Containing Flammable Fluids 45
Precautions for Handling Accumulator and Gas Damper 46
Remove Paint Before Welding or Heating 46
Beware of Asbestos and Silica Dust and Other Contamination 46
Prevent Battery Explosions 47
Service Air Conditioning System Safely 47
Handle Chemical Products Safely 48
Dispose of Waste Properly 48
Never Ride Attachment 49
Notes on Aftertreatment Device 49
Precautions for Communication Terminal 49
Precautions for Communication Terminal Equipment 50
Notes on Protection by Operator’s Station when the Machine Rolls Over 51
Before Returning the Machine to the Customer 51
SECTION AND GROUP CONTENTS 53
CONTENTS 55
OPERATIONAL PERFORMANCE TEST 67
Introduction 69
Operational Performance Tests 69
Preparation for Performance Tests 70
Standard 73
Operational Performance Standard Table 73
Engine System Performance Standards 73
Travel System Performance Standards 74
Swing System Performance Standards 75
Front Attachment System Performance Standards 75
Lever System Performance Standards 79
Combined Operation System Performance Standards 79
Component System Performance Standards 79
Main Pump P-Q Diagram (P1, P2) 80
Main Pump P-Q Diagram (P3) 82
Engine Control Dial Activating Range 84
Pilot Pressure Sensor (4436535) Activating Range 84
Pump Control Pressure Sensor (4436536) Activating Range 85
Pump Delivery Pressure Sensor (4436271) Activating Range 86
Monitor Indicating Values of ECM 87
Monitor Indicating Values of MC 89
Monitor Indicating Values of MC (Pressure Sensor) 92
Monitor Indicating Values of MC (Solenoid Valve) 95
Monitor Indicating Values of Switch Box Controller 96
Engine Test 97
Engine Speed 97
Lubricant Consumption 99
Machine Performance Test101
Travel Speed101
Track Link Revolution Speed101
Mistrack Check102
Travel Parking Leakage103
Swing Speed104
Swing Function Drift Check105
Swing Motor Leakage107
Maximum Swingable Slant Angle108
Swing Bearing Play109
Hydraulic Cylinder Cycle Time111
Dig Function Drift Check (Maximum Reach Position)112
Dig Function Drift Check (Arm Roll-In Position)114
Control Lever Operating Force115
Control Lever Stroke116
Combined Operation of Boom Raise and Swing Function Check116
Combined Operation of Boom Raise and Arm Roll-In Function Check118
Clearance of Front Attachment Connecting Part119
Component Test121
Primary Pilot Pressure121
Secondary Pilot Pressure122
5-Spool Solenoid Valve Unit Set Pressure123
3-Spool Solenoid Valve Unit Set Pressure126
2-Spool Solenoid Valve Unit (Aftertreatment Device Regeneration Control) Set Pressure128
Main Pump Delivery Pressure131
Main Relief Set Pressure132
Main Relief Valve Pressure Adjustment Procedure133
High-Pressure Side of Main Relief Pressure Adjustment Procedure134
Low-Pressure Side of Main Relief Pressure Adjustment Procedure136
Relief Pressure (When Relieving Swing)136
Overload Relief Valve Set Pressure138
Overload Relief Valve Pressure Adjustment Procedure (Reference)139
Main Pump Flow Rate Measurement (P-Q Control (Torque Control))140
Main Pump Flow Rate Measurement (Pilot Pressure Characteristics)142
Regulator Adjustment (P1, P2)147
Regulator Adjustment (P3)149
Swing Motor Drainage150
Travel Motor Drainage153
Adjustment155
Rewrite of Aftertreatment Device Serial No155
How to Clear Fault Code155
Measuring Method of No-Load-Max Differential Pressure157
Differential Pressure Sensor Learning158
Filter Maintenance159
Procedure after Replacing DCU and ECM159
Air Bleeding from the Diesel Exhaust Fluid Defrosting Piping160
How to Check Manual Regeneration Switch162
Remedy at DEF Pressure Decrease163
Clean DEF Tank165
Remedy when Mixing Oil in DEF Tank167
Calibration of Aerial Angle167
Oil Monitoring Sensor Setting175
[A] Constant Change (Oil Monitoring Sensor Setting)176
[D] Sensor Collective Diagnosis (Oil Monitoring Sensor Functional Check)179
[B] Diagnosis of Engine Oil Monitoring Sensor (Oil Monitoring Sensor Functional Check)182
[C] Diagnosis of Hydraulic Oil Monitoring Sensor (Oil Monitoring Sensor Functional Check)185
TROUBLESHOOTING 0
Diagnosing Procedure 0
Introduction 0
Diagnosis Procedure 0
Electrical System Inspection 0
Precautions for Inspection and Maintenance 0
Instructions for Disconnecting Connectors 0
Instructions for Removing Relays 0
Fuse Inspection 0
Fuse Connection Destination 0
Fusible Link Inspection 0
Battery Voltage Check 0
Alternator Check 0
Continuity Check 0
Voltage and Current Measurement of 24-Volt Circuit 0
Voltage and Current Measurement of 5-Volt Circuit 0
Check by False Signal 0
Test Wire Harness 0
Removal of ECM 0
Installation of ECM 0
Removal of DCU 0
Installation of DCU 0
Removal of MC (Main Controller) 0
Installation of MC (Main Controller) 0
Removal of Monitor Controller 0
Installation of Monitor Controller 0
Removal of GSM 0
Installation of GSM 0
Removal of PLCU (Option) 0
Installation of PLCU (Option) 0
Removal of Aerial Angle Controller 0
Installation of Aerial Angle Controller 0
Mounting Position of Pump Delivery Pressure Sensor 0
Mounting Position of Pump Control Pressure Sensor 0
Mounting Position of Boom Raise Pilot Pressure Sensor 0
Mounting Position of Arm Roll-Out Pilot Pressure Sensor 0
Mounting Position of Arm 2 Roll-In Pilot Pressure Sensor 0
Mounting Position of Bucket Roll-Out Pilot Pressure Sensor 0
Mounting Position of Bucket Roll-In Pilot Pressure Sensor 0
Mounting Position of Travel Pilot Pressure Sensor 0
Mounting Position of Arm 1 Roll-In Pilot Pressure Sensor 0
Mounting Position of Swing Pilot Pressure Sensor 0
Mounting Position of Front Pilot Pressure Sensor 0
Mounting Position of Auxiliary 1 Pilot Pressure Sensor 0
Mounting Position of Auxiliary 2 Pilot Pressure Sensor 0
Mounting Position of Fuel Sensor 0
Mounting Position of Hydraulic Oil Temperature Sensor 0
Mounting Position of Differential Pressure Sensor 0
Mounting Position of Exhaust Temperature Sensor 0
Mounting Position of NOx Sensor 0
Mounting Position of Engine Oil Monitoring Sensor 0
Mounting Position of Hydraulic Oil Monitoring Sensor 0
Mounting Position of Ambient Temperature Sensor 0
Mounting Position of Re-circulated Air Temperature Sensor 0
Mounting Position of Frost Sensor 0
Mounting Position of Solar Radiation Sensor 0
Monitor 0
Basic Screen of Monitor 0
Operating Procedures of Service Menu 0
How to Display Service Menu 0
How to Display Troubleshooting Screen 0
How to Display Monitoring 0
Monitoring Items of Engine Controller (ECM) 0
Monitoring Items of Main Controller (MC) 0
Monitoring Items of PLCU 0
Monitoring Items of Monitor Controller (Information) 0
Monitoring Items of Switch Box Controller 0
Monitoring Items of Air Conditioner Unit 0
How to Display Controller Version 0
How to Display Operation 0
How to Display Communication Terminal Status 0
List of Communication Terminal Status 0
Operating Procedures of Breaker Alarm 0
Operating Procedures of Machine Setting (Constant Change) 0
List of Machine Setting Items 0
Operating Procedures of Monitor Setting (Operation Permission) 0
Operating Procedures of Monitor Setting (Maintenance Items) 0
List of Monitor Setting Items 0
Operating Procedures of Attachment Setting (Constant Change) 0
List of Attachment Setting Items 0
Operating Procedures of Engine Setting 0
How to Display Aftertreatment Device No 0
Attachment Adjustment 0
Operating Procedures of Breaker Relief Pressure 0
Operating Procedures of Auxiliary Overload Relief Valve Pressure 0
Inspection of Engine Oil Level and Coolant Level 0
Inspection of Hour Meter and Fuel Gauge 0
Fuel Gauge 0
Coolant Temperature Gauge 0
DEF Gauge 0
Hydraulic Oil Temperature Gauge 0
e-Service 0
Outline of e-Service 0
List of Operation Data 0
Communication System 0
Component Layout 0
Main Component (Upperstructure) 0
Main Component (Undercarriage) 0
Main Component (Front Attachment) 0
Electrical System (Overview) 0
Electrical System (Rear Tray) 0
Electrical System (Switches) 0
Electrical System (Utility Space) 0
Electrical System (Relays) 0
Engine Oil Monitoring Sensor 0
Hydraulic Oil Monitoring Sensor 0
Engine 0
Aftertreatment Device 0
Pump Device 0
Around Pump Device 0
Control Valve 0
Signal Control Valve 0
Swing Device 0
Travel Device 0
5-Spool Solenoid Valve Unit 0
3-Spool Solenoid Valve Unit 0
2-Spool Solenoid Valve Unit (For Aftertreatment Device Regeneration Control) 0
DEF Tank 0
DEF Supply Module 0
Layout of Attachment Spec Parts 0
Around Control Valve 0
Control Valve Lower Side 0
Utility Space 0
Components in Control Valve 0
Pilot Valve Side of Pilot Port 0
Control Valve Side of Pilot Port 0
Port Layout of Control Valve (Main Circuit) 0
Port Layout of Control Valve (Pilot Circuit) 0
Cab Harness 0
Main Harness 0
Pump Harness 0
NOx Harness 0
Monitor Harness 0
Console Harness 0
Control Valve Harness 0
Wiper Harness 0
Wiper Motor Harness 0
Pilot Shut-Off Solenoid Valve Harness 0
Engine Stop Switch Harness 0
Cigar Lighter Sub Harness 0
Connector Layout of MC 0
Connector Layout of Monitor Controller 0
Connector Layout of ECM 0
Connector Layout of DCU 0
Connector Layout of GSM 0
Connector Layout of Aerial Angle Controller 0
Connector Layout of PLCU (Option) 0
Troubleshooting A 0
Troubleshooting A (Base Machine Diagnosis by Using Fault Codes) Procedure 0
Contents of Troubleshooting A 0
MC Fault Code 73000-3 0
MC Fault Code 73000-4 0
MC Fault Code 73001-3 0
MC Fault Code 73001-4 0
MC Fault Code 73002-3 0
MC Fault Code 73003-2 0
MC Fault Code 73004-2 0
MC Fault Code 73005-2 0
MC Fault Code 73006-2 0
MC Fault Code 41000-2 0
MC Fault Code 51000-3 0
MC Fault Code 51000-4 0
MC Fault Code 51001-3 0
MC Fault Code 51001-4 0
MC Fault Code 51002-3 0
MC Fault Code 51002-4 0
MC Fault Code 51003-3 0
MC Fault Code 51003-4 0
MC Fault Code 51004-3 0
MC Fault Code 51004-4 0
MC Fault Code 51005-3 0
MC Fault Code 51005-4 0
MC Fault Code 53000-3 0
MC Fault Code 53000-4 0
MC Fault Code 53001-3 0
MC Fault Code 53001-4 0
MC Fault Code 53002-3 0
MC Fault Code 53002-4 0
MC Fault Code 53003-3 0
MC Fault Code 53003-4 0
MC Fault Code 53004-3 0
MC Fault Code 53004-4 0
MC Fault Code 53005-3 0
MC Fault Code 53005-4 0
MC Fault Code 53006-3 0
MC Fault Code 53006-4 0
MC Fault Code 53015-3 0
MC Fault Code 53015-4 0
MC Fault Code 53016-3 0
MC Fault Code 53016-4 0
MC Fault Code 51006-2 0
MC Fault Code 51006-6 0
MC Fault Code 51006-5 0
MC Fault Code 51007-2 0
MC Fault Code 51007-6 0
MC Fault Code 51007-5 0
MC Fault Code 51008-2 0
MC Fault Code 51008-6 0
MC Fault Code 51008-5 0
MC Fault Code 51009-2 0
MC Fault Code 51009-6 0
MC Fault Code 51009-5 0
MC Fault Code 51010-2 0
MC Fault Code 51010-6 0
MC Fault Code 51010-5 0
MC Fault Code 51011-2 0
MC Fault Code 51011-6 0
MC Fault Code 51011-5 0
MC Fault Code 51012-2 0
MC Fault Code 51012-6 0
MC Fault Code 51012-5 0
MC Fault Code 51013-2 0
MC Fault Code 51013-6 0
MC Fault Code 51013-5 0
MC Fault Code 51014-2 0
MC Fault Code 51014-6 0
MC Fault Code 51014-5 0
MC Fault Code 51015-2 0
MC Fault Code 51015-6 0
MC Fault Code 51015-5 0
MC Fault Code 51016-2 0
MC Fault Code 51016-6 0
MC Fault Code 51016-5 0
MC Fault Code 51017-2 0
MC Fault Code 51017-6 0
MC Fault Code 51017-5 0
MC Fault Code 51018-2 0
MC Fault Code 51018-6 0
MC Fault Code 51018-5 0
MC Fault Code 51019-2 0
MC Fault Code 51019-6 0
MC Fault Code 51019-5 0
MC Fault Code 51020-2 0
MC Fault Code 51021-3 0
MC Fault Code 51021-4 0
MC Fault Code 51022-3 0
MC Fault Code 51022-4 0
MC Fault Code 51023-3 0
MC Fault Code 51023-4 0
MC Fault Code 51025-0 0
MC Fault Code 51026-14 0
MC Fault Code 63000-2 0
MC Fault Code 73007-2 0
MC Fault Code 73008-2 0
MC Fault Code 73034-2 0
MC Fault Code 51029-2 0
MC Fault Code 51029-6 0
MC Fault Code 51029-5 0
MC Fault Code 51030-2 0
MC Fault Code 51030-6 0
MC Fault Code 51030-5 0
MC Fault Code 51031-2 0
MC Fault Code 51031-6 0
MC Fault Code 51031-5 0
MC Fault Code 73028-2 0
Monitor Controller (Information) Fault Code 41001-2 0
Monitor Controller (Information) Fault Code 41002-3 0
Monitor Controller (Information) Fault Code 41003-3 0
Monitor Controller (Information) Fault Code 41003-4 0
Monitor Controller (Information) Fault Code 73033-2 0
Monitor Controller (Information) Fault Code 41004-14 0
Monitor Controller (Information) Fault Code 41005-14 0
Monitor Controller (Information) Fault Code 41006-14 0
Monitor Controller (Information) Fault Code 41007-14 0
Monitor Controller (Information) Fault Code 41008-14 0
Monitor Controller (Information) Fault Code 41004-20 0
Monitor Controller (Information) Fault Code 73013-2 0
Monitor Controller (Information) Fault Code 73014-2 0
Monitor Controller (Information) Fault Code 73015-2 0
Monitor Controller (Information) Fault Code 73016-2 0
Monitor Controller (Information) Fault Code 73017-2 0
Monitor Controller (Information) Fault Code 73018-2 0
Monitor Controller (Information) Fault Code 73019-2 0
Monitor Controller (Information) Fault Code 73020-2 0
Monitor Controller (Information) Fault Code 73021-2 0
Monitor Controller (Information) Fault Code 68004-12 0
Monitor Controller (Information) Fault Code 68005-12 0
Monitor Controller (Information) Fault Code 68006-12 0
Monitor Controller (Information) Fault Code 68007-12 0
Monitor Controller (Information) Fault Code 68008-12 0
Monitor Controller (Information) Fault Code 68009-12 0
Monitor Controller (Information) Fault Code 41002-4 0
Monitor Controller (Information) Fault Code 73029-2 0
Monitor Controller (Monitor) Fault Code 73010-2 0
Monitor Controller (Monitor) Fault Code 73011-2 0
Monitor Controller (Monitor) Fault Code 73012-2 0
Monitor Controller (Monitor) Fault Code 73030-2 0
Monitor Controller (Monitor) Fault Code 13911-3 0
Monitor Controller (Monitor) Fault Code 13912-4 0
Monitor Controller (Monitor) Fault Code 13913-3 0
Monitor Controller (Monitor) Fault Code 13914-4 0
Monitor Controller (Monitor) Fault Code 13917-3 0
Monitor Controller (Monitor) Fault Code 13918-4 0
Monitor Controller (Monitor) Fault Code 13921-3 0
Monitor Controller (Monitor) Fault Code 13922-4 0
Monitor Controller (Monitor) Fault Code 13943-2 0
Monitor Controller (Monitor) Fault Code 13944-2 0
Monitor Controller (Monitor) Fault Code 13951-2 0
Monitor Controller (Monitor) Fault Code 13991-2 0
Monitor Controller (Monitor) Fault Code 13992-2 0
Switch Box Controller Fault Code 14504-3 0
Switch Box Controller Fault Code 14504-4 0
Aerial Angle Controller Fault Code 68000-2 0
Aerial Angle Controller Fault Code 68001-2 0
Aerial Angle Controller Fault Code 68002-2 0
Aerial Angle Controller Fault Code 73022-2 0
Aerial Angle Controller Fault Code 68003-2 0
PLCU Fault Code 53007-3 0
PLCU Fault Code 53007-4 0
PLCU Fault Code 53008-3 0
PLCU Fault Code 53008-4 0
PLCU Fault Code 53009-12 0
PLCU Fault Code 53009-7 0
PLCU Fault Code 53010-12 0
PLCU Fault Code 53010-7 0
PLCU Fault Code 53011-2 0
PLCU Fault Code 53011-6 0
PLCU Fault Code 53011-5 0
PLCU Fault Code 53012-2 0
PLCU Fault Code 53012-6 0
PLCU Fault Code 53012-5 0
PLCU Fault Code 53013-2 0
PLCU Fault Code 53013-6 0
PLCU Fault Code 53013-5 0
PLCU Fault Code 53014-2 0
PLCU Fault Code 53014-6 0
PLCU Fault Code 53014-5 0
PLCU Fault Code 53017-2 0
PLCU Fault Code 53018-2 0
PLCU Fault Code 53019-2 0
PLCU Fault Code 53020-2 0
PLCU Fault Code 53021-2 0
PLCU Fault Code 53009-8 0
PLCU Fault Code 53010-8 0
PLCU Fault Code 53017-8 0
PLCU Fault Code 53020-8 0
PLCU Fault Code 53018-8 0
PLCU Fault Code 53021-8 0
PLCU Fault Code 63001-3 0
PLCU Fault Code 63001-4 0
PLCU Fault Code 73023-2 0
PLCU Fault Code 73024-2 0
PLCU Fault Code 73035-7 0
Power-CAN harness Check 0
Body-CAN Harness Check 0
ISO-CAN (Engine) Harness Check 0
IF-CAN Harness Check 0
OPT-CAN Harness Check 0
PL-CAN Harness Check 0
ECM Fault Code List 0
DCU Fault Code List 0
Troubleshooting B 0
Troubleshooting B (Machine Diagnosis by Using Trouble Symptom) Procedure 0
Contents of Troubleshooting B 0
Relationship between Machine Trouble Symptoms and Related Parts 0
When a Fault Occurs in MC (Main Controller) 0
When a Fault Occurs in Switch Box Controller 0
When a Fault Occurs in Engine Control Dial 0
When a Fault Occurs in Auto-Idle Switch 0
When a Fault Occurs in Power Mode Switch 0
When a Fault Occurs in Travel Mode Switch 0
When a Fault Occurs in Power Digging Switch 0
When a Fault Occurs in Pilot Shut-Off Switch (Pilot Shut-Off Lever) 0
When a Fault Occurs in Manual Regeneration Switch 0
When a Fault Occurs in Aerial Angle Switch 0
When a Fault Occurs in Pilot Shut-Off Solenoid Valve 0
When a Fault Occurs in Hydraulic Oil Temperature Sensor 0
When a Fault Occurs in Differential Pressure Sensor 0
When a Fault Occurs in DOC Inlet Exhaust Temperature Sensor 0
When a Fault Occurs in DOC Outlet Exhaust Temperature Sensor 0
When a Fault Occurs in SCR Exhaust Temperature Sensor 0
When a Fault Occurs in Pump 1 Delivery Pressure Sensor 0
When a Fault Occurs in Pump 2 Delivery Pressure Sensor 0
When a Fault Occurs in Pump 3 Delivery Pressure Sensor 0
When a Fault Occurs in Pump 1 Control Pressure Sensor 0
When a Fault Occurs in Pump 2 Control Pressure Sensor 0
When a Fault Occurs in Pump 3 Control Pressure Sensor 0
When a Fault Occurs Swing Pilot Pressure Sensor 0
When a Fault Occurs in Boom Raise Pilot Pressure Sensor 0
When a Fault Occurs in Arm 2 Roll-In Pilot Pressure Sensor 0
When a Fault Occurs in Arm 1 Roll-In Pilot Pressure Sensor 0
When a Fault Occurs in Travel Pilot Pressure Sensor 0
When a Fault Occurs in Front Pilot Pressure Sensor 0
When a Fault Occurs in Bucket Roll-In Pilot Pressure Sensor 0
When a Fault Occurs in Arm Roll-Out Pilot Pressure Sensor 0
When a Fault Occurs in Bucket Roll-Out Pilot Pressure Sensor 0
When a Fault Occurs in Auxiliary 1 Pilot Pressure Sensor (Option) 0
When a Fault Occurs in Auxiliary 2 Pilot Pressure Sensor (Option) 0
When a Fault Occurs in Pump 1 and 2 Torque Control Solenoid Valve 0
When a Fault Occurs in Pump 3 Torque Control Solenoid Valve 0
When a Fault Occurs in Maximum Pump 1 Flow Rate Limit Control Solenoid Valve 0
When a Fault Occurs in Maximum Pump 2 Flow Rate Limit Control Solenoid Valve 0
When a Fault Occurs in Maximum Pump 3 Flow Rate Limit Control Solenoid Valve 0
When a Fault Occurs in 5-Spool Solenoid Valve Unit (SI) 0
When a Fault Occurs in 5-Spool Solenoid Valve Unit (SD) 0
When a Fault Occurs in 5-Spool Solenoid Valve Unit (SE) 0
When a Fault Occurs in 5-Spool Solenoid Valve Unit (SF) 0
When a Fault Occurs in 5-Spool Solenoid Valve Unit (SC) 0
When a Fault Occurs in 3-Spool Solenoid Valve Unit (SK1) 0
When a Fault Occurs in 3-Spool Solenoid Valve Unit (SK2) 0
When a Fault Occurs in 3-Spool Solenoid Valve Unit (SK3) 0
When a Fault Occurs in 2-Spool Solenoid Valve Unit (SZ) 0
When a Fault Occurs in 2-Spool Solenoid Valve Unit (SJ) 0
When a Fault Occurs in Main Relief Valve (For P1, P2) 0
When a Fault Occurs in Main Relief Valve (For P3) 0
When a Fault Occurs in Overload Relief Valve 0
When a Fault Occurs in Boom Anti-Drift Valve 0
When a Fault Occurs in Arm Rod Anti-Drift Valve 0
When a Fault Occurs in Arm Bottom Anti-Drift Valve 0
When a Fault Occurs in Flow Combiner Valve 0
When a Fault Occurs in Boom Regenerative Valve 0
When a Fault Occurs in Arm Regenerative Valve 0
When a Fault Occurs in Bucket Regenerative Valve 0
When a Fault Occurs in Bucket Regeneration Cut Valve 0
When a Fault Occurs in Arm 1 Flow Rate Control Valve 0
When a Fault Occurs in Auxiliary Flow Combiner Valve 0
When a Fault Occurs in Pump 1 Bypass Shut-Out Valve 0
When a Fault Occurs in Pump 3 Bypass Shut-Out Valve 0
When a Fault Occurs in Digging Regenerative Valve 0
When a Fault Occurs in Boom Lower Meter-In Cut Valve 0
When a Fault Occurs in Arm Roll-In Meter-Out Open Control Spool 0
When a Fault Occurs in Travel Motor Displacement Angle Control Valve 0
When a Fault Occurs in Pump 1 Flow Rate Control Valve 0
When a Fault Occurs in Pump 2 Flow Rate Control Valve 0
When a Fault Occurs in Pump 3 Flow Rate Control Valve 0
When a Fault Occurs in Swing Parking Brake Release Spool 0
When a Fault Occurs in Flow Combiner Valve Control Spool 0
When a Fault Occurs in Auxiliary Flow Combiner Control Solenoid Valve (Option) 0
When a Fault Occurs in Selector Valve Control Solenoid Valve (Option) 0
When a Fault Occurs in Selector Valve (Option) 0
When a Fault Occurs in Accumulator Control Valve (Option) 0
When a Fault Occurs in Breaker Relief Solenoid Valve (Option) 0
When a Fault Occurs in Auxiliary Overload Relief Solenoid Valve (Option) 0
Identification Symbol of Troubleshooting B 0
Correlation between Trouble Symptoms and Part Failures 0
Parts Related with “E-1 Starter does not rotate” 0
Parts Related with “E-2 Even if starter rotates, engine does not start” 0
Parts Related with “E-3 Even if power mode switch is operated, power mode is not shifted” 0
Parts Related with “E-4 ECO mode is faulty” 0
Parts Related with “E-5 Travel HP mode is faulty” 0
Parts Related with “E-6 Auto-idle system is faulty” 0
Parts Related with “E-7 Even if pilot shut-off lever is set to UNLOCK position with engine running at slow idle speed, engine speed does not increase” 0
Parts Related with “E-8 Engine speed does not increase when coolant temperature is low” 0
Parts Related with “E-9 Auto shut-down is not activated” 0
Parts Related with “E-12 Engine speed does not decrease when audio mute/one-touch idle switch is pushed” 0
Parts Related with “A-1 All actuators do not work” 0
Parts Related with “A-2 All actuator speeds are slow” 0
Parts Related with “A-3 Actuator does not stop even if control lever is set to neutral” 0
Parts Related with “A-4 Manual regeneration of aftertreatment device cannot be performed” 0
Parts Related with “A-5 Travel (right) operation speed is slow when performing travel single operation Bucket single operation speed is slow (All problems occur at the same time)” 0
Parts Related with “A-6 Travel (left) operation speed is slow when performing travel single operation Attachment single operation speed is slow (All problems occur at the same time)” 0
Parts Related with “A-9 Swing single operation speed is slow Boom speed is slightly slow when performing arm level crowding operation (All problems occur at the same time)” 0
Parts Related with “F-1 All front attachment actuator powers are weak” 0
Parts Related with “F-2 Front attachment drifts remarkably” 0
Parts Related with “F-3 When boom raise or arm roll-out is operated, boom or arm starts to move after moving slightly down” 0
Parts Related with “F-4 Even if power digging switch is pushed, power does not increase Boom raise power is weak when performing digging operation” 0
Parts Related with “F-5 Boom, arm, or bucket single operation is not operated Boom, arm, or bucket single operation speed is slow” 0
Parts Related with “F-6 Bucket roll-in speed is slow or power is weak when performing digging operation” 0
Parts Related with “F-7 When performing combined operation, arm does not start to move smoothly Arm starts to move slightly slow when performing arm single operation These troubles often occur when temperature is low” 0
Parts Related with “F-8 When performing combined operation, boom does not start to move smoothly Boom starts to move slightly slow when performing boom lower single operation” 0
Parts Related with “F-9 Boom lower speed above ground is faster than other actuators when performing combined operation Machine cannot be raised off the ground” 0
Parts Related with “F-10 Arm roll-in speed is slow when performing digging operation” 0
Parts Related with “F-11 Arm roll-in speed is fast when performing arm level crowding operation Arm power is weak when performing digging operation” 0
Parts Related with “F-14 Boom raise or attachment speed is slow when performing combined operation of boom raise and arm or attachment and arm” 0
Parts Related with “F-16 Boom raise speed is slow when performing combined operation of swing and boom raise” 0
Parts Related with “F-22 Bucket speed is slow when performing combined operation of arm roll-in and bucket Boom raise speed is slow when performing combined operation of swing, boom raise, and arm roll-in Arm roll-in speed is slow” 0
Parts Related with “F-23 Arm roll-out speed is slow” 0
Parts Related with “F-24 Arm roll-in speed is slow when performing combined operation of boom raise and arm roll-in” 0
Parts Related with “S-1 Swing speed is slow or is not operated” 0
Parts Related with “S-2 When starting swing operation, swing speed is fast” 0
Parts Related with “T-1 Both of right and left travels are not operated or travel speed is slow” 0
Parts Related with “T-2 One side travel is not operated or travel speed is slow Machine mistracks” 0
Parts Related with “T-3 Machine mistracks when performing combined operation of travel and front attachment” 0
Parts Related with “T-4 Fast travel can not be selected Travel mode does not change from slow speed mode to fast speed mode” 0
Parts Related with “T-5 Occasionally, machine may mistrack when traveling with engine running at slow speed” 0
Parts Related with “T-6 Attachment speed is slow when performing attachment single operation Travel speed is slow when performing combined operation of attachment and travel” 0
Parts Related with “O-1 Work light does not light” 0
Parts Related with “O-2 Cab light does not light” 0
Parts Related with “O-3 Wiper is not operated” 0
Parts Related with “O-4 Washer is not operated” 0
Parts Related with “O-5 Boom light does not light” 0
Parts Related with “O-6 Camera image does not change when aerial angle switch is pressed” 0
E-1 Starter does not rotate 0
E-2 Even if starter rotates, engine does not start 0
E-3 Even if power mode switch is operated, power mode is not shifted 0
E-4 ECO mode is faulty 0
E-5 Travel HP mode is faulty 0
E-6 Auto-idle system is faulty 0
E-7 Even if pilot shut-off lever is set to UNLOCK position with engine running at slow idle speed, engine speed does not increase 0
E-8 Engine speed does not increase when coolant temperature is low 0
E-9 Auto shut-down is not activated 0
E-12 Engine speed does not decrease when audio mute/one-touch idle switch is pushed 0
A-1 All actuators do not work 0
A-2 All actuator speed are slow 0
A-3 Actuator does not stop even if control lever is set to neutral 0
A-4 Manual regeneration of aftertreatment device cannot be performed 0
A-5 Travel (right) operation speed is slow when performing travel single operation Bucket single operation speed is slow (All problems occur at the same time) 0
A-6 Travel (left) operation speed is slow when performing travel single operation Attachment single operation speed is slow (All problems occur at the same time) 0
A-9 Swing single operation speed is slow Boom speed is slightly slow when performing arm level crowding operation (All problems occur at the same time) 0
F-1 All front attachment actuator powers are weak 0
F-2 Front attachment drifts remarkably 0
F-3 When boom raise or arm roll-out is operated, boom or arm starts to move after moving slightly down 0
F-4 Even if power digging switch is pushed, power does not increase Boom raise power is weak when performing digging operation 0
F-5 Boom, arm, or bucket single operation is not operated Boom, arm, or bucket single operation speed is slow 0
F-6 Bucket roll-in speed is slow or power is weak when performing digging operation 0
F-7 When performing combined operation, arm does not start to move smoothly Arm starts to move slightly slow when performing arm single operation These troubles often occur when temperature is low 0
F-8 When performing combined operation, boom does not start to move smoothly Boom starts to move slightly slow when performing boom lower single operation 0
F-9 Boom lower speed above ground is faster than other actuators when performing combined operation Machine cannot be raised off the ground 0
F-10 Arm roll-in speed is slow when performing digging operation 0
F-11 Arm roll-in speed is fast when performing arm level crowding operation Arm power is weak when performing digging operation 0
F-14 Boom raise or attachment speed is slow when performing combined operation of boom raise and arm or attachment and arm 0
F-16 Boom raise speed is slow when performing combined operation of swing and boom raise 0
F-22 Bucket speed is slow when performing combined operation of arm roll-in and bucket Boom raise speed is slow when performing combined operation of swing, boom raise, and arm roll-in Arm roll-in speed is slow 0
F-23 Arm roll-out speed is slow 0
F-24 Arm roll-in speed is slow when performing combined operation of boom raise and arm roll-in 0
S-1 Swing speed is slow or is not operated 0
S-2 When starting swing operation, swing speed is fast 0
T-1 Both of right and left travels are not operated or travel speed is slow 0
T-2 One side travel is not operated or travel speed is slow Machine mistracks 0
T-3 Machine mistracks when performing combined operation of travel and front attachment 0
T-4 Fast travel can not be selected Travel mode does not change from slow speed mode to fast speed mode 0
T-5 Occasionally, machine may mistrack when traveling with engine running at slow speed 0
T-6 Attachment speed is slow when performing attachment single operation Travel speed is slow when performing combined operation of attachment and travel 0
O-1 Work light does not light 0
O-2 Cab light does not light 0
O-3 Wiper is not operated 0
O-4 Washer is not operated 0
O-5 Boom light does not light 0
O-6 Camera image does not change when aerial angle switch is pressed 0
Exchange Inspection 0
How to Lower Boom in Case of Emergency and When Engine Stops without Hose Rupture Valve 0
How to Lowering Boom When Emergency and When Engine Stops with Hose Rupture Valve 0
Attachment Circuit Pressure Release Procedure 0
Air Conditioner 0
Outline of Air Conditioner 0
Component Layout of Air Conditioner 0
Functions of Main Electrical Parts 0
Troubleshooting of Air Conditioner 0
Monitor Controller (Monitor) Fault Code 13911-3 0
Monitor Controller (Monitor) Fault Code 13912-4 0
Monitor Controller (Monitor) Fault Code 13913-3 0
Monitor Controller (Monitor) Fault Code 13914-4 0
Monitor Controller (Monitor) Fault Code 13917-3 0
Monitor Controller (Monitor) Fault Code 13918-4 0
Monitor Controller (Monitor) Fault Code 13921-3 0
Monitor Controller (Monitor) Fault Code 13922-4 0
Monitor Controller (Monitor) Fault Code 13943-2 0
Monitor Controller (Monitor) Fault Code 13944-2 0
Monitor Controller (Monitor) Fault Code 13951-2 0
Monitor Controller (Monitor) Fault Code 13991-2 0
Monitor Controller (Monitor) Fault Code 13992-2 0
Faulty Cooling (1) 0
Faulty Cooling (2) 0
Faulty Cooling (3) 0
Faulty Cooling (4) 0
Faulty Cooling (5) 0
Faulty Heating (1) 0
Faulty Heating (2) 0
Others 0
Blower motor does not operate 0
Compressor clutch does not operate 0
Cooling Circuit Check by Using Manifold Gauge 0
Work after Replacing Components 0
Refill compressor oil 0
Necessity of Purging 0
Procedures for Charging Air Conditioner with Refrigerant 0
Warm-Up Operation 0
Hose and Pipe Tightening Torque 0
SERVICE MANUAL REVISION REQUEST FORM 0
The Attached Diagram List 0

S.M 30/1/25